Foursome and fourball matches will be played at Liberty National on Saturday.
"Yesterday, and then again today, losing the first two matches (it) would have been great if we could have posted a point with one of the first two matches, but you know, we've just got to keep plugging along".
Oosthuizen will team with Day against Spieth and Reed in the first afternoon match.
There are three things in this life that are certain: death, taxes, and the American team dominating the Presidents Cup.More news: Here's Where You Can Get Free Coffee On National Coffee Day
It only took 13 holes for Charley Hoffman and Kevin Chappell to record a dominant win over Anirban Lahiri and Charl Schwartzel, they flew out of the gates scoring on three of the first four holes and would win 6 & 5.
NOTEWORTHY: The 8-2 lead is the largest after two sessions.
Tiger Woods is one of captain Steve Stricker's assistants this week, and Reed gushed at having the 14-time major victor back on board to help the team. A birdie on the par-3 16th by Kuchar and Johnson gave them a lead that the pair carried home with pars on the final two holes.More news: Google to create separate unit for comparison shopping following European Union fine
The Internationals entered Saturday morning's foursomes session six points down and squarely on life support, and under clear skies and cooler temperatures, the USA pulled the plug on this 12th Presidents Cup, winning 3.5 of four points in the morning and pushing its lead to 11.5-2.5.
There was a hope this week that the worldwide team could make this an interesting Presidents Cup. The International team can be backed at 25/1 for a remarkable win and the tie at 15-15 is available at 20/1.
Oosthuizen and Grace lost for the first time in six matches together at the Presidents Cup, and Oosthuizen lost for the first time since a Saturday foursomes match at Muirfield Village in 2013.
Phil Mickelson and Kevin Kisner will take on Australians Marc Leishman and Jason Day on Friday in a reprise of a tense foursomes match that ended halved. Thomas holed his bunker shot for the Americans to stay 2 up, and Thomas birdied the next hole for a 3-up lead. Grace and Oosthuizen got it back to all square with a birdie at the 11th, and that's where the match would end at the 18th, with a half point going to each team.
This proved to be in violation of Rule 7-2, which states that in match-play situations, players can only practice between holes on the putting green of the previous hole. And as he always does, Thomas put a little sauce on it with his hand in the air with the ball several feet from the hole and still sloping towards the cup.More news: Civilian killed in failed attack on Mattis in Kabul